require(File.dirname(__FILE__)+'/test_helpers.rb')


class StatsampleSrsTestCase < MiniTest::Unit::TestCase
  def test_std_error
    assert_equal(384,Statsample::SRS.estimation_n0(0.05,0.5,0.95).to_i)
    assert_equal(108,Statsample::SRS.estimation_n(0.05,0.5,150,0.95).to_i)
    assert_in_delta(0.0289,Statsample::SRS.proportion_sd_kp_wor(0.5,100,150),0.001)
  end
end
